VTC SERIES COMPRESSOR - Tecumseh Products · Figure 9 – Inverter perspective view with cable and...

VTC SERIES COMPRESSORINSTALLATION INSTRUCTIONS

For use with Tecumseh IntelliCI™030F0207, 030F0228

VTC SERIES COMPRESSOR INSTALLATION INSTRUCTIONS

Built for Today. Ready for TomorrowThroughout its history, Tecumseh Products Company has been a leader in providing customers with efficient and reliable products for commercial and residential refrigeration and air conditioning applications. As a result, equipment manufacturers, wholesale distributors and service contractors continue to demand Tecumseh compressors, condensing units and genuine replacement parts for their specific needs. The VTC series compressor delivers best-in-class efficiency, smaller size, extended application envelope (L/MBP) and Tecumseh’s industry known standard for reliability.

COMPACT SIZEDelivers the same capacity as a larger displacement, single-speed compressor, making more room for refrigerated goods.

REDUCED ENERGY CONSUMPTIONDynamically matches the capacity of the compressor to the system’s cooling demand.

ECO-FRIENDLYOptimized for use with eco-friendly hydrocarbon refrigerant R290 (propane).

TEMPERATURE CONTROLHigh speed compressor operation is used for fast pull-down while low speed operation is used to maintain cabinet temperature with minimal energy consumption.

GLOBAL VOLTAGE STABILIZATIONTecumseh IntelliCI handles voltage inputs from 85-135VAC/170-260VAC, both 50 and 60 Hz. Under/over voltage protection is built-in.


WIRING DIAGRAM..........................................04

GROUND CONNECTION.....................................06

Cable specification..................................................................06

Connector specification...........................................................06

COMPRESSOR CONNECTION..............................07

Cable specification..................................................................07


INVERTER ENCLOSUREOVERVIEW AND DIMENSIONS............................08

Inverter enclosure parts..........................................................08

Inverter basic dimensions......................................................09

COMPRESSOR ENCLOSUREOVERVIEW AND DIMENSIONS............................10

Compressor parts....................................................................10

Compressor footprint..............................................................10

Tubes................................................................................10

Compressor mounting brackets options.................................10

Compressor and controller basic dimensions........................11

Additional grounding connection............................................11

COMPRESSOR AND INVERTER ASSEMBLING..........12

Inverter attachment process....................................................12

SCREW SPECIFICATION....................................13

CONTROLLER DETACHMENT...............................13

WIRE ROUTING..............................................13

POWER CABLE CONNECTION..............................14

Connection remarks.................................................................14

Cable specifications for power input.......................................14

SIGNAL CABLE CONNECTION..............................14

Cable specification for frequency input..................................14

Cable specification for TAL input...........................................14

Cable specification for thermal protection input....................14


Connection remarks.................................................................14

STRAIN RELIEF ASSEMBLY................................15

FENCE COVER ASSEMBLY.................................16

Compressor connection..........................................................17

LABELS.....................................................18

Compressor label detail...........................................................18

Inverter label detail..................................................................18

Inverter ratings........................................................................18

TABLE OF CONTENTS

IMPORTANT PRODUCT NOTICE...........................19

LIMITED WARRANTY.......................................19

04


VTC SERIES COMPRESSOR - INSTALLATION INSTRUCTIONS

Figure 1 – Reference polarity

WIRING DIAGRAM

Figure 2 shows the typical wiring diagram for Tecumseh IntelliCI™ when operating with an electronic thermostat in the application. In this configuration, the thermostat’s input voltage must be connected directly to the AC power. Cycling the AC input power of the inverter is not recommended. The thermostat’s speed control output cable is connected to the inverter frequency input connection (CN3). The thermostat’s output signal polarity must be in accordance to the appropriate input connector polarity (See figure 1 for details). The arrow indicates the positive pole of the signal (+). There is a jumped thermal protection input (CN5) on the inverter board. Remove jumper if connecting to a customer provided overload. Refer to DEMX0056 drawing for more details. Additional circuitry for electromagnetic interference (EMI) filtering may be required depending on applicable standards regarding final application.

Figure 3 shows the typical wiring diagram for the Tecumseh IntelliCI™ when operating with an ordinary on/off thermostat. In this configuration, the thermostat’s input voltage must be connected directly to the main AC power. Cycling the AC input power of the inverter is not recommended. The output voltage must be connected to the TAL (Tecumseh Adaptive Logic) input connector (CN2) of the inverter.

Never service, repair or troubleshoot unless you are qualified to perform these functions.Improper servicing can lead to serious injury or death from fire, electrical shock or explosion.

WARNING!

05


Figure 3 - Typical inverter wiring diagram for operation with ON/OFF thermostat

Figure 2 - Typical inverter wiring diagram for operation with a frequency output thermostat

Tecumseh IntelliCI™

Tecumseh IntelliCI™

Tecumseh IntelliCI™ ground terminal must be properly connected to the input power ground (see Figure 2 and Figure 3). The ground wire of the inverter’s motor output cable must be properly connected to the compressor ground terminal (see Figure 4 and Figure 5).

Cable specification

The inverter cable for compressor grounding is an 18 AWG stranded UL approved cable with PVC insulation rated for 105°C and 600V. The cable color is green with a yellow stripe. Figure 6 shows the inverter cable for the compressor grounding.

Connector specification

The connector used with the inverter cable for compressor grounding is a TE 62048-2 FASTON Reversible Flag receptacle (see Figure 6). Compressor terminal is a FASTON connector directly welded to the hermetic terminal protector (see Figure 5).

Figure 4 – Grounding terminal Figure 5 – Grounding terminal close view

Figure 6 – Cable and reversible flag receptacle for compressor grounding

Grounding Terminal

Grounding Terminal

ReversibleFlag

GROUND CONNECTION


06

A three-phase connection supplies power to the VTC compressor. There is a cluster terminal to avoid phase misconnection between the inverter and the compressor wiring, and the recommended position of the cluster terminal is indicated in Figure 8 and in Table 1.

Figure 7 – Cable and three-phase connector

Table 1 – Compressor/inverter connection

Figure 8 – Compressor complete connection

Cable specification

The output cable of the inverter is comprised of three individual cables, each one with a distinct color to identify each motor phase. The cable colors and the related connector pins position are described in Table 1. All the cables are 18 AWG stranded UL approved cable with PVC insulation rated for 105°C and 600V. This cable is supplied with the inverter and must not be modified. Any modification can result in safety issues such as electrical shock, fire or increased EMI levels.


The cluster terminal block used in the inverter output connection is an Amphenol 1380145-2 or Tyco 1380145-1 (see Figure 8). Plastic material is PBT Valox 310-SE0. The cable terminals are the Tyco 1599105 compatible with 18 AWG cables. This connector is supplied with the inverter and must not be modified. Any modification can damage the compressor.

Connector

Cable Color Hermetic Terminal Position

Black Top

Red Left

White Right

COMPRESSOR CONNECTION

07


The inverter must be assembled vertically on the refrigeration system unit mounting base (see Figure 9). The heat sink must have a forced air flow of at least 3m/s, parallel to its fins (see Figure 18).

Inverter enclosure parts

Inverter enclosure is comprised of a plastic enclosure and an aluminum heat sink (see Figure 10). Four screws are used to hold the inverter vertically in the refrigeration system unit mounting base (see screw specification section for details). The inverter label is on its enclosure and has the main information about inverter ratings, part number and agency approvals (see label and inverter section for more details).

Figure 9 – Inverter perspective view with cable and connector

Figure 10 – Inverter parts: heat sink (left), mounting brackets (center) and locking latches (right)

Heat-sink

Mounting brackets Snaps

INVERTER ENCLOSURE OVERVIEW AND DIMENSIONS

08


Snaps

The inverter has three cable entrances: powerline input, control input and compressor output (see Figure 11) and four snaps, two on the top and two on each side of the inverter box, as indicated on Figure 12.

Figure 11 – Inverter side view of input and output detailment

Figure 13 – Inverter dimensions (mm)

Figure 12 – Inverter snaps

Inverter basic dimensions

Figure 13 shows the inverter dimensions and its label position. Refer to drawing DGMX0086 for more details.

Compressor output

Control input

Powerline input

Snaps Snaps

09


It is recommended to attach the compressor in the final application mounting base before placing the inverter to avoid damaging the inverter device.

Compressor parts

The VTC compressor label is placed on the compressor side as shown in Figure 14. The label has information about the part number, compressor ratings and refrigerant type. Refer to the label section for more details.

Tubes

The compressor has three tubes for discharge, suction and process lines. The position of the tubes is illustrated in Figure 15 and their specification are described in Table 2. For more information refer to the drawings DCVTC052.

Compressor footprint

Figure 15 shows the dimensions of the VTC compressor. There is no provision for top mounted evaporating tray.

Figure 14 – Compressor label location

Table 2 – Compressor Tubes

Drawing Part Number Tube Name Inner diameter (min-max) (mm)

Depth(mm) Plug Number Material

DCVTC052

Suction 6.45 – 6.55 15.0 – 17.0 40 Copper

Discharge 4.92 – 5.02 15.0 – 17.0 1 Copper

Process 6.45 – 6.55 15.0 – 17.0 40 Copper

CompressorLabel

Compressor mounting brackets options

To give more flexibility to the refrigerator cabinet design, there are two options which can be used as compressor mounting brackets: European and universal. For more information refer to the drawings DCVTC052.

COMPRESSOR ENCLOSURE OVERVIEW AND DIMENSIONS

10


Compressor and inverter basic dimensions

Figure 15 – Compressor and inverter dimensions (mm)

Additional grounding connection

In addition to the grounding connection provided by the inverter, there is another grounding connection available at the compressor mounting brackets (see Figure 16). This ground must be connected directly from the compressor bracket to the cabinet chassis.

Grounding Connection

Grounding Connection

Figure 16 – Additional compressor grounding and close view

11


The compressor should be assembled as the final step before attaching it to the system mounting base to avoid damaging the inverter enclosure. The mounting brackets on its back cover should not be used. The label should be visible and the tubes and the cables should be placed in a way that they are accessible from the label side.

It is important to highlight the need of forced air flowing through the inverter heat-sink fins of at least 3m/s. (see Figure 18).

The proper placement of the inverter and compressor in the refrigeration system unit mounting base must be in accordance with the recommendations given before in this section.

Correct Mounting Brackets

Wrong mounting Brackets

They should not be used

Figure 17 – Mounting brackets of the inverter back cover and base details

Figure 18 – Air flow through inverter heat sink of at least 3m/s

Inverter attachment process

Once the compressor is properly mounted in the refrigeration system mounting base, the inverter can be attached vertically to the mounting base in accordance to the previous considerations of the recommended placement and wiring connections (see 2 and Figure 3). The inverter and the compressor must be disconnected from the powerline.

COMPRESSOR AND INVERTER ASSEMBLING

12


The Tecumseh IntelliCI™ inverter is assembled with four screws with the same specification. They are stainless steel self-tapping screws with Philips pan head and washer. The screws have 3.5 mm diameter and 15.87 mm length. Recommended driver size is #2. Recommended torque for screws is 0.8 Nm (7.1 lb.in).

The inverter detachment from the unit mounting base may be needed during maintenance procedure. To detach the inverter connector from the compressor, make sure the appliance is disconnected from the power source for at least one minute before starting the detachment process.

The user must open the inverter enclosure to access the powerline and signal terminals as indicated in Figure 20. The snaps should be properly handled and the right tool must be used for this operation. Refer to Strain Relief Assembly section for details.

The wires for powerline and control input should follow the proper routing (see Figure 19).

Figure 19 – Input wires routing as represented in the dashed lines

SCREW SPECIFICATION

INVERTER DETACHMENT

WIRE ROUTING

13


RISK OF ELECTRICAL SHOCK: DISCONNECT FROM POWERSUPPLY AND WAIT ONE MINUTE BEFORE DETACHING

INVERTER FROM THE COMPRESSOR

WARNING!

Figure 20 – Detailed connectors for powerline, TAL and frequency control input

Screws

Screws

Powerline

TAL

Frequency

ThermalProtection

POWER CABLE CONNECTION

SIGNAL CABLE CONNECTION

The inverter has a 3 positions PCB terminal block connector for powerline input (CN1). The wires must be fastened in each connector terminal (see Figure 20).

Connection remarks

It is recommended to double check the inverter powerline input connection and assure there is a robust connection following the maximum recommended torque of 0.4 Nm for the connector screws.

Cable specifications for power input

Recommended cable specification is 14 AWG standard, UL approved cable with PVC insulation rated for 105° C and 600V. It can be a three-way cable with outer jacket, maximum external diameter of 9.6 mm.

Cable specification for frequency input

The recommended cable specifications are 24 AWG standard UL approved cable with PVC insulation rated for 105°C.

Cable specification for TAL input

The recommended cable specifications are 18 AWG standard UL approved cable with PVC insulation rated for 105°C and 600V.

Cable specification for thermal protection input

The recommended cable specifications are 24 AWG standard UL approved cable with PVC insulation rated for 105°C.


The recommended connector for frequency control and thermal protection input cable is the Molex 70066-0176.

Connection remarks

The user must use only one mode of operation for the speed control command, “TAL” or frequency control. They should not be connected at the same time for proper operation. The thermal protection input is a normally closed input. So, if the additional thermal protector is not used, the thermal protection connector (CN5) pins must be bridged for the compressor proper operation.

14


Step #4

The TAL or frequency control wires must be properly routed.

The cables must be routed into the box as indicated in Figure 19.

The recommended procedure for opening the inverter enclosure and routing the input cables is indicated below.

Figure 21 – Strain relief assembly procedure

STRAIN RELIEF ASSEMBLY

15


Step #2

After opening the enclosure the back cover can be detached from the inverter box.

Step #3

All the terminals can be directly reached with the back cover detached from the

enclosure.

Step #5

The compressor wires must be properly routed and connected as indicated above.

Step #1

The user must unlock the four snaps properly to open the enclosure.

There are two snaps in the fence cover sides (see Figure 22). The fence cover must be detached from the compressor in order to connect the output power cable to the compressor. To open the protective fence cover, the user should use a screw driver to unlock the snaps properly.

Snap

Snap

Figure 22 – Left and right-side perspective of fence cover and side snaps

FENCE COVER ASSEMBLY

16


Compressor connection

The following procedure describes how the compressor connection and attachment of the fence cover must be done.

Figure 23 - Procedure for the attachment of the fence cover to the compressor

Step #1

The fence cover should be off the compressor.

Step #4The strain relief screw must be attached

to the fence cover and torqued to the screw specification.

Step #5The assembled fence cover should

be similar to the figure above.

Step #3Attach the fence cover to the compressor fence terminals.

Step #2

Connect the three-phase and grounding connectors to the compressor terminals.

17


Screw Specification

The strain relief screw is a self-tapping screw with Philips head. The screw have 3.5 mm diameter and 25 mm length. Recommended driver size is #1. Recommended torque for the screw is 0.8 Nm (7.1 lb.in).

Compressor label detail

For more information about compressor ratings refer to the specific VTC compressor datasheet.

1

1

5

2

6

3

7

4

8

8

65

7

42

3

Compressor BOM code

Compressor part number

Compressor production date and serial number

Refrigerant specification

Compressor rated voltage and frequency range

Compressor maximum phase current

Compressor part number and serial number(datamatrix coded)

Area reserved for flammable gas symbol (yellow colored)

LABELS

18


Inverter label detail

1

5

234

Inverter part number and revision (human readable and bar coded)Inverter production date and serial number

Inverter software number and revision

Area reserved for agency approval

Inverter ratings (see inverter ratings section below for details)

Inverter QR code

Inverter ratings

6

Table 3 - Inverter input/output values

4

3

1

2

5 6

All statements, technical information or data related to Tecumseh Products Co. are based on information believed to be reliable. However, no representation or warranty, express or implied, is made as to their completeness, accuracy, fitness for a particular purpose or any other matter, including, without limitation, that the practice or application of any such statements, technical information or data is free of patent infringement or other intellectual property misappropriation.

All information provided in this specification is intended for persons having the requisite knowledge, skill, and expertise to properly and completely evaluate such information. Tecumseh Products Co. shall not be responsible or liable for the use, application or implementation of the information provided herein, and all such information is to be used at the risk, and in the sole judgment and discretion, of such persons, their employees, advisors and agents and only after their independent evaluation and determination that the product is suitable for the application intended by such persons.

Tecumseh Products Co. is not in the business of providing technical, engineering or operational information for a fee, and, therefore, any such information is provided as an accommodation and without charge. Tecumseh Products Co. reserves the right to make changes to its products or to discontinue any product at any time without notice, and advises customers to obtain the latest relevant information prior to ordering.

All Tecumseh Products Co. products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including, but not limited to, those pertaining to warranty (as stated in its “Warranty to Original Equipment Manufacturers”), patent infringement, and limitation of liability. TECUMSEH PRODUCTS CO. MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MECHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE INCLUDING, WITHOUT LIMITATION, ANY WARRANTY THAT TECUMSEH PRODUCTS CO. PRODUCTS ARE SUITABLE OR FIT FOR USE IN ANY HUMAN SAFETY OR LIFE SUPPORT SYSTEMS. If a Tecumseh Products Co. product is found to be defective in materials or workmanship within the warranty period set forth in the “Warranty to Original Equipment Manufacturers,” Tecumseh Products Co.’s sole and exclusive obligation, exercisable in its sole discretion, shall be to repair or replace the product or refund the purchase price of the product as more fully set forth in the “Warranty to Original Equipment Manufacturers.”

“Tecumseh Products Co. will not be liable for any loss or damage arising from any Tecumseh Products Co. product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, even if Tecumseh Products Co. shall have been advised of the possibility of such potential loss or damage. This publication supersedes and replaces all information previously supplied.”

IMPORTANT PRODUCT NOTICE

LIMITED WARRANTY; DISCLAIMER OF WARRANTY; LIMITED REMEDY; LIMITED LIABILITY

19


Document # 600A1572 Rev F©2018 Tecumseh Products Company. All Rights Reserved

NORTH AMERICA5683 Hines DriveAnn Arbor, MI 48108USATel +1 734 585 9500Fax +1 734 352 3700

BRAZILRua Ray Wesley Herrick, 700São Carlos - SP, CEP 13565-090BRAZILTel +55 16 3362 3000Fax +55 16 3363 7219

EUROPE2, Avenue Blaise Pascal38090 Vaulx MilieuFRANCETel +33 4 74 82 24 00Fax +33 4 74 82 24 44

MALAYSIANo. 18, Jalan Sultan Mohamed 4,Selat Klang Utara, 42000 Port Klang,Selangor Darul EhsanMALAYSIATel +60 3 3176 3886Fax +60 3 3176 3890

INDIABalanagar Industrial Township,Hyderabad, 500 037INDIATel +91 40 30116993/94

CHINATecumseh Compressor(Guangzhou) Co., Ltd.Room 634, Wuzi Building,201 Guangbao Avenue,Guangzhou Free Trade Zone,CHINACode: 510730Tel +86 20 8221 8072Fax +86 20 8205 7456

For more informationon products by Tecumseh, please visit our websitewww.tecumseh.com

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VTC SERIES COMPRESSOR - Tecumseh Products · Figure 9 – Inverter perspective view with cable and...

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